Firstrade

Firstrade Securities is a commission-free online brokerage offering trading in stocks, ETFs, options, mutual funds, and fixed income securities with no account minimums and no inactivity fees. Firstrade does not publish an official public REST API; programmatic account access is available through the Plaid financial data aggregator, which supports account balance retrieval, transaction history, investment holdings, and asset reports for Firstrade accounts. Community-developed unofficial Python SDKs also exist for session- based automation but are not affiliated with or endorsed by Firstrade.

Firstrade publishes 5 APIs on the APIs.io network, including Account API, Authentication API, Market Data API, and 2 more. Tagged areas include Brokerage, Commission-Free Trading, Stocks, ETFs, and Options.

Firstrade’s developer surface includes authentication, pricing, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.3/100 thin ▬ flat Agent 22/100 agent aware saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessFreemiumOpen⚡ Free to try

1 APIs

BrokerageCommission-Free TradingStocks ETFs Options Mutual Funds Fixed Income Retirement IRA Investing Finance Open Banking

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 36.3/100 · thin

Contract Quality 9.9 / 19

Developer Ergonomics 4.3 / 15

Access Clarity 9.1 / 15

Operational Transparency 0.0 / 10

Contract Governance 0.0 / 9

Discoverability 5.1 / 8

Regulatory Posture 3.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/firstrade: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Firstrade Account Data API (via Plaid)

Access to Firstrade account data is available through the Plaid financial data aggregation platform. Plaid supports four product categories for Firstrade: Assets (consolidated b...

Firstrade Account API

Account list, balances, positions, and history

Firstrade Authentication API

Session login and MFA flows

Firstrade Market Data API

Stock quotes, OHLC chart data, and option chains

Firstrade Orders API

Equity and option order placement, listing, and cancellation

Firstrade Watchlist API

Watchlist CRUD operations

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Firstrade Unofficial Account API

OPEN COLLECTION

Firstrade Unofficial Account Authentication API

OPEN COLLECTION

Firstrade Unofficial Account Market Data API

OPEN COLLECTION

Firstrade Unofficial Account Orders API

OPEN COLLECTION

Firstrade Unofficial Account Watchlist API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Plans

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rate Limits

0 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Firstrade Authentication

apiKey · 1 scheme

SECURITY

Firstrade Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Firstrade Agentic Access

24 operations · 11 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

PlaidIntegration

PlaidIntegration

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

HelpCenter

HelpCenter

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

PressCenter

PressCenter

Other 4

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Trading

Trading

MobileApp

MobileApp

OpenBankingTracker

OpenBankingTracker

Source (apis.yml)

aid: firstrade
name: Firstrade
description: Firstrade Securities is a commission-free online brokerage offering trading in stocks, ETFs, options, mutual
  funds, and fixed income securities with no account minimums and no inactivity fees. Firstrade does not publish an official
  public REST API; programmatic account access is available through the Plaid financial data aggregator, which supports account
  balance retrieval, transaction history, investment holdings, and asset reports for Firstrade accounts. Community-developed
  unofficial Python SDKs also exist for session- based automation but are not affiliated with or endorsed by Firstrade.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  label: Freemium · Open access
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/firstrade.png
url: https://raw.githubusercontent.com/api-evangelist/firstrade/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
type: Index
tags:
- Brokerage
- Commission-Free Trading
- Stocks
- ETFs
- Options
- Mutual Funds
- Fixed Income
- Retirement
- IRA
- Investing
- Finance
- Open Banking
apis:
- name: Firstrade Account Data API (via Plaid)
  description: 'Access to Firstrade account data is available through the Plaid financial data aggregation platform. Plaid
    supports four product categories for Firstrade: Assets (consolidated balance summaries and asset reports), Balance (current
    and available account balances), Transactions (up to 24 months of transaction history), and Investments (retirement, brokerage,
    and crypto holdings). Authentication is handled via Plaid Link — Firstrade customers connect their accounts through Plaid''s
    consent-based flow. Data is returned in JSON format through Plaid''s standard endpoints. Geographic coverage is United
    States only.'
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://plaid.com/institutions/firstrade/
  baseURL: https://production.plaid.com
  tags:
  - Account Data
  - Balances
  - Transaction
  - Investments
  - Assets
  - Open Banking
  - Plaid
  tags_raw:
  - Account Data
  - Balance
  - Transactions
  - Investments
  - Assets
  - Open Banking
  - Plaid
  properties:
  - type: Documentation
    url: https://plaid.com/institutions/firstrade/
  - type: APIReference
    url: https://plaid.com/docs/api/
  - type: Authentication
    url: https://plaid.com/docs/link/
  - type: TermsOfService
    url: https://www.firstrade.com/content/en-us/aboutus/privacypolicy
  - type: PrivacyPolicy
    url: https://www.firstrade.com/content/en-us/aboutus/privacypolicy
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/firstrade/refs/heads/main/plans/plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/firstrade/refs/heads/main/rate-limits/rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/firstrade/refs/heads/main/finops/finops.yml
  contact:
  - FN: Firstrade Customer Support
    url: https://www.firstrade.com/support
    phone: 1-800-869-8800
- aid: firstrade:firstrade-account-api
  name: Firstrade Account API
  description: Account list, balances, positions, and history
  humanURL: https://plaid.com/institutions/firstrade/
  baseURL: https://production.plaid.com
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/firstrade-account-api-openapi.yml
- aid: firstrade:firstrade-authentication-api
  name: Firstrade Authentication API
  description: Session login and MFA flows
  humanURL: https://plaid.com/institutions/firstrade/
  baseURL: https://production.plaid.com
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/firstrade-authentication-api-openapi.yml
- aid: firstrade:firstrade-market-data-api
  name: Firstrade Market Data API
  description: Stock quotes, OHLC chart data, and option chains
  humanURL: https://plaid.com/institutions/firstrade/
  baseURL: https://production.plaid.com
  tags:
  - Market Data
  properties:
  - type: OpenAPI
    url: openapi/firstrade-market-data-api-openapi.yml
- aid: firstrade:firstrade-orders-api
  name: Firstrade Orders API
  description: Equity and option order placement, listing, and cancellation
  humanURL: https://plaid.com/institutions/firstrade/
  baseURL: https://production.plaid.com
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/firstrade-orders-api-openapi.yml
- aid: firstrade:firstrade-watchlist-api
  name: Firstrade Watchlist API
  description: Watchlist CRUD operations
  humanURL: https://plaid.com/institutions/firstrade/
  baseURL: https://production.plaid.com
  tags:
  - Watchlist
  properties:
  - type: OpenAPI
    url: openapi/firstrade-watchlist-api-openapi.yml
common:
- type: CapabilityMap
  url: capabilities/firstrade-capability-edges.yml
  name: Firstrade Business Capability Map
- type: AgenticAccess
  url: agentic-access/firstrade-agentic-access.yml
- type: DomainSecurity
  url: security/firstrade-domain-security.yml
- type: Authentication
  url: authentication/firstrade-authentication.yml
- type: Website
  url: https://www.firstrade.com/
- type: Trading
  url: https://www.firstrade.com/trading
- type: Pricing
  url: https://www.firstrade.com/trading/pricing
- type: HelpCenter
  url: https://help.firstrade.com/
- type: PrivacyPolicy
  url: https://www.firstrade.com/content/en-us/aboutus/privacypolicy
- type: TermsOfService
  url: https://www.firstrade.com/content/en-us/aboutus/termsofuse
- type: PressCenter
  url: https://www.firstrade.com/press
- type: MobileApp
  url: https://apps.apple.com/us/app/firstrade-invest-trade/id405325225
- type: OpenBankingTracker
  url: https://www.openbankingtracker.com/provider/firstrade
- type: PlaidIntegration
  url: https://plaid.com/institutions/firstrade/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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